//反例{ "before": true, "after": false }]*/
var foo = 1, bar = 2;
var arr = [1 , 2];
var obj = {"foo": "bar", "baz": "qur"};
new Foo(a,b);
function baz(a,b){}
a, b
const arr = [1, 2];
const arr = [1,
  2];
const obj = {'foo':
'bar', 'baz':
'qur'};
function Foo<T,T1>() {}
